Horizontal ledges situated on the non production side of open pit servicing to accommodate the transportation roads.
A. Box cut
B. Trench
C. Berm
D. High wall
Answer: Option C
A. Box cut
B. Trench
C. Berm
D. High wall
Answer: Option C
Which test determines the sensitivity of explosive to shock and impact.
A. Rifle bullet test
B. Gap test
C. Ageing test
D. Water resistance test
The mining method which does not distroy the land for agriculture and residential purposes.
A. Striping
B. Open cast
C. Placer
D. Long wall
The output capacity of a drag line with 23 to 30m3 is million cu.m per year is
A. 0.25 to 0.75
B. 3 to 4.5
C. 1.5 to 1.7
D. None
Join The Discussion